Search for dissertations about: "Friction Stir Welding FSW"

Showing result 6 - 10 of 11 swedish dissertations containing the words Friction Stir Welding FSW.

2. 6. Robot system for flexible 3D friction stir welding

   Author : Mikael Soron; Ivan Kalaykov; Jorge F. dos Santos; Örebro universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction Stir Welding; robotics; TECHNOLOGY; TEKNIKVETENSKAP; Automatic control; Reglerteknik; Reglerteknik; Automatic Control;

   Abstract : Applying Friction Stir Welding (FSW) on complex joint geometries requires not only a machine with 3-dimesional work space capacity, but also a sound definition of the part geometry as well as knowledge about the process. Having a joining process, such as FSW, with great characteristics from both seam quality and environmental perspective, but yet only a minor presence in the manufacturing industry may be related to flexibility and cost issues. READ MORE

4. 7. Fatigue Strength of Friction Stir Welded Joints in Aluminium

   Author : Mats Ericsson; Rolf Sandström; Ole Terje Midling; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Applied Materials Technology; friction stir welding; fatigue; mechanical properties; welding speed; softening; Materialvetenskap; Materials science; Teknisk materialvetenskap;

   Abstract : Solid state Friction stir welding (FSW) is of major interest in the welding of aluminium since it improves the joint properties. Many applications where Al-alloys are used are subject to varying load conditions, making fatigue failure a critical issue. READ MORE

5. 8. Thermoelectric Measurements for Temperature Control of Robotic Friction Stir Welding

   Author : Ana Catarina Ferreira Magalhães; Gunnar Bolmsjö; Jeroen De Backer; Jean Pierre Bergmann; Högskolan Väst; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction stir welding; Aluminium; Temperature measurements; Process control; Robotics; Geometrically complex components; Friktionsomrörningssvetsning; Aluminium; temperaturmätning; Processstyrning; Robotik; Geometriskt komplexa komponenter; Production Technology; Produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik;

   Abstract : Friction stir welding (FSW) has undergone a rapid expansion in several industrial sectors such as in the aerospace, marine, railway and automotive sectors. Current industrial applications are mainly simple long straight welds, but there is a growth of interest in components with higher geometric complexity. READ MORE

6. 9. Friction Stir Welding of Copper Canisters Using Power and Temperature Control

   Author : Lars Cederqvist; Innovation; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction stir welding; copper; temperature control; PID control;

   Abstract : This thesis presents the development to reliably seal 50 mm thick copper canisters containing the Swedish nuclear waste using friction stir welding. To avoid defects and welding tool fractures, it is important to control the tool temperature within a process window of approximately 790 to 910°C. READ MORE

7. 10. Fatigue Assessment of Friction Stir Welded Joints in Aluminium Profiles

   Author : Meysam Mahdavi Shahri; Rolf Sandström; Per Jahn Haagensen; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction stir welding; Fatigue; Aluminium alloys; Critical distance; Finite element method; Standard codes;

   Abstract : Friction stir welding (FSW) is a low heat input solid state welding technology. It is often used for fabrication of aluminium alloys in transportation applications including railway, shipbuilding, bridge structures and automotive components. READ MORE